HFVHANDLER-298, add netCDF-4 predefined attribute check for EOS5 files.
HFVHANDLER-298, add netCDF-4 predefined attribute check for EOS5 files.

OPENDAP/hdf5_handler,OPENDAP/hdf5_handler,OPENDAP/hdf5_handler,OPENDAP/hdf5_handler,OPENDAP/hdf5_handler,OPENDAP/hdf5_handler